TLDR: WordPress user profiles lack customization for frontend use, particularly in membership sites. Advanced Custom Fields (ACF) enhances user profile management by enabling custom fields through existing plugins or by creating frontend forms. Popular plugins like Ultimate Member and WP User Manager work well with ACF, allowing for extensive data collection. Additionally, seven recommended plugins are detailed, each with unique features to improve user profiles. ACF can be combined with these plugins for more tailored profile management, supporting various types of user information.
https://www.advancedcustomfields.com/blog/frontend-user-profile-wordpress/